MAX5945 MAXIM [Maxim Integrated Products], MAX5945 Datasheet - Page 27

• Manufacturer Part Number: MAX5945
• Description: Quad Network Power Controller for Power-Over-LAN
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 13. Power Status Register
Table 14. Address Input Status Register
Table 15. Mode Register
Software resets of ports (RESET_P_ bit, Table 22) do
not affect the mode register.
Setting DCD_EN_ to 1 enables the DC load disconnect
detection feature (Table 16). Setting ACD_EN_ to 1
enables the AC load disconnect feature. If enabled, the
load disconnect detection starts during power mode
and after startup when the corresponding PGOOD_ bit
in register R10h (Table 13) goes high. A Reset sets
MIDSPAN
SYMBOL
PWR_EN4
PWR_EN3
PWR_EN2
PWR_EN1
SYMBOL
Reserved
Reserved
SYMBOL
PGOOD4
PGOOD3
PGOOD2
PGOOD1
P4_M1
P4_M0
P3_M1
P3_M0
P2_M1
P2_M0
P1_M1
P1_M0
AUTO
A3
A2
A1
A0
ADDRESS = 12h
ADDRESS = 11h
ADDRESS = 10h
BIT
BIT
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
______________________________________________________________________________________
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
M0DE[1] for port 4
M0DE[0] for port 4
M0DE[1] for port 3
M0DE[0] for port 3
M0DE[1] for port 2
M0DE[0] for port 2
M0DE[1] for port 1
M0DE[0] for port 1
Reserved
Reserved
Device address, A3 pin latched-in status
Device address, A2 pin latched-in status
Device address, A1 pin latched-in status
Device address, A0 pin latched-in status
MIDSPAN input’s latched-in status
AUTO input’s latched-in status
Power-good condition on port 4
Power-good condition on port 3
Power-good condition on port 2
Power-good condition on port 1
Power is enabled on port 4
Power is enabled on port 3
Power is enabled on port 2
Power is enabled on port 1
Quad Network Power Controller
R13h = 0000AAAA where A represents the latched-in
state of the AUTO input prior to the reset.
Setting DET_EN_/CLASS_EN_ to 1 (Table 17) enables
load detection/classification, respectively. Detection
always has priority over classification. To perform clas-
sification without detection, set the DET_EN_ bit low
and CLASS_EN_ bit high.
DESCRIPTION
DESCRIPTION
DESCRIPTION
for Power-Over-LAN
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